Yes, both of those models will be exactly the same regarding the YouTube app since they are identical. I don't know exactly what that means, only that there will be no difference in the YouTube app for both. I hope the app will continue to work fine, we just won't see any further updates to it but I suspect it means the app will no longer work with YouTube, period, that YouTube is being changed significantly and the app will be incompatible.

We will know in a couple of weeks when whatever is going to happen, happens.